Search Results

364 results

  1. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 30

    Identification of sucker control genes

    HAMANO K.; SUZUKI S.; SATO S.; ARAI M.; NEGISHI Y.; NOMURA A.; TSUKAHARA M.
    Japan Tobacco Inc., Leaf Tobacco Research Center, Oyama, Tochigi, Japan
    In tobacco, depending on strong shoot apical dominance, suckers grow vigorously after topping. A sucker can develop sequentially at least three times at each axil during the cultivation period. Suckers negatively affect tobacco yield and quality. ...
  2. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 35

    Development of THA mutant line having markedly increased threonine in cured leaves

    KOIKE A.; NOGUCHI S.; TSUKUI S.; OGURO S.
    Japan Tobacco Inc., Leaf Tobacco Research Center, Oyama, Tochigi, Japan
    Threonine (Thr), an amino acid, is known to be related to tobacco smoking flavour and aroma. Obtaining Thr-rich cured tobacco leaves is difficult because Thr contents in fresh tobacco leaves are decreased drastically during curing processes. To increase ...
  3. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 40

    Plant metabolism studies with 14C-maleic hydrazide (MH) in tobacco and evaluation of analytical methods

    TATENO A.(1); KISHI H.(1); NAKAYAMA K.(2); OYAMA K.(1); MIYOSHI M.(1)
    (1) Japan Tobacco Inc., Leaf Tobacco Research Center, Oyama, Tochigi, Japan; (2) Japan Tobacco Inc., Scientific and Regulatory Affairs Division, Tokyo, Japan
    Maleic hydrazide (MH) is used as a sucker control agent for tobacco. Reportedly, absorbed MH in tobacco plants is metabolized to its glucoside conjugates and is converted to the bound form. However, how much original MH can be converted to those forms in ...
  4. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 43

    Pyrethroid resistance in the cigarette beetle Lasioderma serricorne (F.) (Coleoptera: Anobiidae)

    FUKAZAWA N.; TAKAHASHI R.
    Japan Tobacco Inc., Leaf Tobacco Research Center, Oyama, Tochigi, Japan
    Spraying application of contact insecticides onto building surfaces (walls and floors) is a key measure to control the cigarette beetle Lasioderma serricorne (F.) population in tobacco warehouses. Pyrethroids have been used widely as effective surface ...
  5. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 45

    New genetic source for black shank resistance and genomic loci associated with its resistance

    SHINJO A.; KOGA K.; ONO T.; NOGUCHI S.
    Japan Tobacco Inc., Leaf Tobacco Research Center, Oyama, Tochigi, Japan
    Black shank causes severe yield loss of tobacco in Japan because of root and leaf infection by Phytophthora nicotianae, the causal agent of this disease. Several cultivated varieties in Japan have partial resistance derived from Florida 301, which is ...
  6. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 47

    Enhanced resistance to potato virus Y (PVY) and resistance-breaking PVY in tobacco eIF4E-S and eIF(iso)4E-T double mutant

    TAKAKURA Y.; UDAGAWA H.; SHINJO A.; KOGA K.
    Japan Tobacco Inc., Leaf Tobacco Research Center, Oyama, Tochigi, Japan
    Eukaryotic translation-initiation factors in plants, eIF4E and eIF(iso)4E, play key roles in infection by potyviruses and other plant RNA viruses. Mutations in the genes encoding these factors might reduce susceptibility to viruses. They are the basis of ...
  7. CORESTA Congress, Kunming, 2018, Smoke Science/Product Technology Groups, ST 03

    Solvent-free extraction method for in vitro testing with tobacco vapor products

    ITO H.; KITAMURA N.
    Japan Tobacco Inc., Scientific Product Assessment Center, Yokohama, Kanagawa, Japan
    Since extracts made with emissions from ENDS and tobacco vapor products (TVP) generally exhibit weak biological responses in commonly used in vitro tests compared to those from conventional cigarettes, it is essential to generate very high concentration ...
  8. CORESTA Congress, Kunming, 2018, Smoke Science/Product Technology Groups, ST 17

    A clinical study investigating changes in exposure to cigarette smoke chemicals in U.K. smokers who switch to using a tobacco heating product for a five-day period

    McEWAN M.(1); EBAJEMITO J.K.(1); GALE N.(1); ELDRIDGE A.(1); CAMACHO O.M.(1); MURPHY J.(1); HARDIE G.(1); PROCTOR C.J.(1)
    (1) British American Tobacco (Investments) Limited, R&D, Southampton, U.K.; (2) Celerion Inc., Lincoln, NE, U.S.A.
    Smoking is a leading cause of numerous diseases, particularly lung cancer, chronic obstructive pulmonary disease and cardiovascular diseases. Consequently, there is a recognized need to provide smokers with alternative nicotine-delivery devices that have ...
  9. CORESTA Congress, Kunming, 2018, Smoke Science/Product Technology Groups, ST 44

    Time and spatially resolved in-situ determination of temperature, pressure and gas phase concentration of selected smoke constituents inside a burning superslim cigarette. Part I – Thermophysical mapping

    CUI Huapeng(1); EHLERT S.(2); XIE Fuwei(1); DENG Nan(1); LI Bin(1); LIU Chuan(3); McADAM K.(3); WALTE A.(2); ZIMMERMANN R.(2)
    (1) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, P.R. China; (2) Photonion GmbH, Schwerin, Germany; (3) British American Tobacco (Investments) Limited, Global R&D, Southampton, U.K.
    Superslim cigarettes in China are a relevant product category on the market. Accurate determination of key thermo-physical and-chemical parameters in superslim cigarettes are essential for the mechanistic understanding of combustion as well as pyrolysis ...
  10. CORESTA Congress, Kunming, 2018, Smoke Science/Product Technology Groups, ST 59

    An inter-laboratory comparison study focused on the determination of total NNAL in human urine

    NEWLAND K.(1); SCHERER M.(2); HECHT S.S.(3); TROUDE V.(4); PRASAD G.L.(5)
    (1) Celerion Inc., Lincoln, NE, U.S.A.; (2) ABF GmbH, Planegg, Germany; (3) University of Minnesota Cancer Center, Minneapolis, MN, U.S.A.; (4) Reemtsma Cigarettenfabriken GmbH, Imperial Brands plc, Hamburg, Germany; (5) RAI Services Company, Winston-Salem, NC, U.S.A.
    In an ongoing effort to fulfil the second objective of the CORESTA Biomarker Sub-Group, periodic inter-laboratory comparison studies have been performed to evaluate the consistency of the quantitation for various harmful or potentially harmful exposure ...